Re: cannot use css background-image

yes, I miss the opening quote '
and I find in css, if using development mode, the url has a "/" at the beginning

 background-image:url('/images/line.png');

but if in production mode, the url has no "/" at the beginning

background-image:url('images/line.png');

the reason is really unknown.

But now I face another strange problem, the code is as follow:

public class TestFlowPanelLeft extends FlowPanel {
   
    public void onLoad(){
        
        HorizontalPanel outer = new HorizontalPanel();
        outer.setSize("100%", "30px");
        outer.setBorderWidth(10);
        HorizontalPanel left1 = new HorizontalPanel();
        left1.add(new Label("see?"));
        outer.add(left1);
        HorizontalPanel left2 = new HorizontalPanel();
        left2.addStyleName("backGroundImage1");
        //left2.setSize("100%", "100%"); cannot show left2!!
        left2.setSize("100%", "10px");
        outer.add(left2);
        this.add(outer);        
    }

}

I try to set left2 height to 100%, and because outer is 30px, so I expect left2 can show correctly, but the result is not!!
I need to explicit set the height of left2.

the css of backGroundImage1 is

.backGroundImage1{
    background-image:url('/images/line.png');
    background-repeat:repeat-x;
}

if I set the height of left2 to 10px, the output is as attached.
why if I set the height of left2 to 100%, left2 cannot be shown?!!

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